checkpatch: switch indent allow plain return

It is a common and sane idiom to allow a single return on the end of a
case statement:

	switch (...) {
	case foo:	return bar;
	}

Add an exception for this.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 1e7d2cd..c6782ac 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1295,7 +1295,11 @@ sub process {
                        }
                }
                if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
-                   $line !~ /\G(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$/g) {
+                   $line !~ /\G(?:
+                       (?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$|
+                       \s*return\s+
+                   )/xg)
+               {
                        ERROR("trailing statements should be on next line\n" . $herecurr);
                }